Presunciones sobre el contenido de alcohol o drogas en la sangre

Explicación Simple

Si te detienen por manejar, el contenido de alcohol en tu sangre puede influir en tu caso. Dependiendo de cuánto alcohol tengas, se puede suponer que estabas o no bajo su influencia.

Es como cuando preparas un batido: si le pones mucha fruta, es dulce; si le pones poco, no lo es. El contenido de alcohol en tu sangre funciona de manera similar para determinar si estabas ebrio o no.

Ejemplo Práctico

Imagina que Carlos va a una fiesta y toma algunas cervezas. Al salir, es detenido por la policía. Si el análisis de su aliento muestra que tiene 0.07% de alcohol, no se puede afirmar con certeza que estaba ebrio, pero si muestra 0.09%, se presumirá que sí lo estaba.

Texto Original del Estatuto (Inglés)

Va. Code § 18.2-269 - Presumptions from alcohol or drug content of blood. A. In any prosecution for a violation of § 18.2-36.1 or clause (ii), (iii), or (iv) of § 18.2-266 or any similar ordinance, the amount of alcohol or drugs in the blood of the accused at the time of the alleged offense as indicated by a chemical analysis of a sample of the accused's blood or breath to determine the alcohol or drug content of his blood (i) in accordance with the provisions of §§ 18.2-268.1 through 18.2-268.12 or (ii) performed by the Department of Forensic Science in accordance with the provisions of §§ 18.2-268.5 , 18.2-268.6 , and 18.2-268.7 on the suspect's whole blood drawn pursuant to a search warrant shall give rise to the following rebuttable presumptions: 1. If there was at that time 0.05 percent or less by weight by volume of alcohol in the accused's blood or 0.05 grams or less per 210 liters of the accused's breath, it shall be presumed that the accused was not under the influence of alcohol intoxicants at the time of the alleged offense; 2. If there was at that time in excess of 0.05 percent but less than 0.08 percent by weight by volume of alcohol in the accused's blood or 0.05 grams but less than 0.08 grams per 210 liters of the accused's breath, such facts shall not give rise to any presumption that the accused was or was not under the influence of alcohol intoxicants at the time of the alleged offense, but such facts may be considered with other competent evidence in determining the guilt or innocence of the accused; 3. If there was at that time 0.08 percent or more by weight by volume of alcohol in the accused's blood or 0.08 grams or more per 210 liters of the accused's breath, it shall be presumed that the accused was under the influence of alcohol intoxicants at t